Research on the Strength Prediction Model of Softened Mudstone Based on Triaxial Compressive Test of Rock

Table 3

Least mean standard fitting deviations of each strength criterion.

Strength criterion	Water content (%)	Least mean standard fitting deviations (MPa)
Mohr–Coulomb	0	0.43
	10.1	0.60
	12.5	0.66
	14.1	0.70
Hoek–Brown	0	7.97
	10.1	1.94
	12.5	0.48
	14.1	0.85
Generalized Hoek–Brown	0	11.15
	10.1	3.86
	12.5	1.63
	14.1	0.46
Bieniawski (single-parameter)	0	1.53
	10.1	1.25
	12.5	0.92
	14.1	0.73
Bieniawski (two-parameter)	0	0.18
	10.1	0.30
	12.5	0.18
	14.1	0.34
Bieniawski (three-parameter)	0	0.13
	10.1	0.12
	12.5	0.06
	14.1	0.07
Rocker	0	0.75
	10.1	0.60
	12.5	0.37
	14.1	0.51